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Finding the Fourth Proportional to 368,272.36, 552,408.54 and 318,201

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Solution

The fourth proportional to 368,272.36, 552,408.54 and 318,201 is: 477,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,272.36 : 552,408.54 = 318,201 : x
  2. Step 2: Convert to fraction form
    368,272.36/552,408.54 = 318,201/x
  3. Step 3: Cross multiply
    368,272.36x = 552,408.54 × 318,201
  4. Step 4: Simplify right side
    368,272.36x = 175,776,949,836.54
  5. Step 5: Solve for x
    x = 175,776,949,836.54/368,272.36
  6. Step 6: Final answer
    x = 477,301.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.